the402 endpoint detail

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voice.forgemesh.io tts base

https://voice.forgemesh.io/v1/tts/base

payable

Text-to-speech synthesis in 1 of 10 standard voices (5 male M1-M5, 5 female F1-F5) across 31 languages, up to 500 characters, returned as inline WAV audio. Use it to: give an agent a spoken reply, read an alert aloud, narrate a short UI prompt, add voice to a chatbot response, speak a confirmation message. Cheapest tier. USDC on Base via x402, no API key, no signup.

We sent a real POST request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.001
Network
base
Pay to
0x962794FB8aD92941fAf1ab446b9e30637B86F331
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
POST
Response latency
121 ms
Payment options
1 usable of 1
Last checked
2026-08-10T09:09:11.457Z (1d ago)
Category
ai-inference

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fvoice.forgemesh.io%2Fv1%2Ftts%2Fbase"